Cylinder support for circular rib knitting machines



w. LARKIN 1,988,359

CYLINDER SUPPORT FOR CIRCULAR RIB KNITTING MACHINES Jan. 15, 1935.

Original Filed May 28, 1952 Patented Jan. 15,1935

, ermini-Lennon KNITT G Walternarkin, 1 Non-imam, F Eidelity--Machine Company,

i a corporation of: :1Delawa're FQIt amount RIB MACHINEs,

assign W m ton, DeL,

jlbrigiiialgapplicatioriI May 28, 1932; Serial o.

614,216.. Divided and o o a-omims.

5; cylinder of arib knittinglmachine relative-to the needle dialof the .machine, whereby the needle, dial, in. turn, may be hiftedaxially into cooper'm, tive relation to the needlecylinder ata prede-k terminedpositio-n w'th respect to a doublethread guide and other instrumentalities which. occupy relatively n ed positions and cooperate with the cylinder and. dial needles, whereby said instrumentalities will engage but-one of two threads respectively and simultaneously fed vto. the

; needles by the-doublethreadguide, for purposes.

fully disclosed in the applicants cop ending ,ap-

plication, s r al No.- 614,216, filed May '23, 193;} e I w stationary carryingringQ, upon rotation of the of which the present. application isa division. H

As the invention'disclosed in thepresent ap plication concerns only the means by which shifting of the needle cylinder is efiected the following description will be confined to the mechanism by which the needle cylinder is normally supported, for means by which the needle cylinder may beadjusted axially into said normal knitting position or shifted from said normalknitting position to" the predetermined position ,above referred to, for special knitting, as disclosed in the above noted parent application. I

The single figure of the accompanying drawing is a vertical sectional elevation taken through the needle cylinder and its supporting and adjusting means of the mechanism forming the subject matter of the present invention and the cooperation of such mechanism withthe other elements of the machine for attaining'the desired result.

The machine comprises a base plate 1 to which is secured a hollow annular element 2, by means of screws 3, 3. provided with a horizontally extending internal flange 4, to the upper side of which is secured,

by means of screws 5, a base ring 6.

The base ring 6 is provided with an inwardly projecting horizontal flange 7 tothe underside of which is secured, by means of screws 8, a readily removable cylinder carrying or supporting ring 9.

The cylinder-carrying ring 9 is circularly recessed at 10 to receive the lower end of a needle cylinder 11, said cylinder being axially aligned with the ring 9 by means of a vertical annular wall 12 formed in the ring 9 by the said. recessing ordinary knitting, and the and discloses sufficient of the ma chine involved for illustrating the construction The hollow annular element 2 is this application January 4 c In the base of the recessor shallow bor the-supportingring 9 isformed a counterbore .13, the. base of which is formed acentrallydi sposed threaded openingor bore 14 whichextends completelythrough the ring 9. Thecounterbore13 of, the ring'9 is ,adaptedvto receive an annular flange 15 formed on the 'u'p-g per, endvof a cylinder-adjusting ringl lo e cylinderdjustin g ring 16 provided withthreads-17 which cooperatewith corresponding threadsflformed in the through here 1410i, the supportingringi9, to effect verticalmovement of;

l e l t n nih i The Yli d d u ing ring 16 is provided with depending lugs 19, 19 affording means by which the ring 16 may be rotated with respect to the ring 9.

The lower end surface cylinder 11 bears on the upper surface 'of the flange 15 of the cylinder-adjusting ring 16, and is adapted to be clamped tightly against the 'up-- per surface of the flange 15 by means of screws 20, 20 which pass through suitable apertures the cylinder-adjustingring -16 relativeato the 11a of the needle formed in the carrying ring 9 and are threaded,"

at their upperv .ends, into tapped openings 21 formed in the lower end of the cylinder 11.

. By loosening the screws 20, 20 and by "rotating the cylinder-adjusting ring 16 within the cylinder-carrying ring 9 axial-shifting of the cylinder 11 may be readily effected. After the predetermined position of the cylinder 11 is obtained the cylinder may be secured in said position merely by tightening the screws 20, 20 which, by clamping the cylinder 11 tightly against the adjusting ring 16, prevents accidental rotation of the ring whereby the predetermined position of the cylinder 11 is maintained indefinitely.

If desired, the cylinder 11' may be entirely removed from the machine by removing the screws 8, 8 which secure the carrying ring 9 in position in ing ring 9, the adjustingring 16 and the cylinder 11 may be dropped through the base ring 6 and hollow annular support 2. j e

The peripheral surface of the flange 15 on the adjusting ring 16 has-a snug fitting bearing in and against the circular peripheral wall of the counterbore 13 in the cylindercarrying ring 9 which at all times keeps the upper cylinder- 40 '16 in thering 9,.f-

the machine, after which the carrytilt and thereby throw the axes of the ring 16 supporting surface 18 of the ring 16 level, by preventing tilting of the ring 16 in event of there being any looseness between the threads 17 of the ring 16 and the threads 14 of the ring 9. Such looseness, when the; screws 120. are

tightened to secure the cylinder 11 in place;

would cause the ring 16 and the cylinderll to and'the cylinder 11 out of alignment with each 13 obviates such conditions; I claim:

l. The combination of a circular in the counterbore ring removably secured to the base plate, a cylinder securedto said supporting ring an adjusting ring threaded into said supporting ring and engaging said cylinder'for shiftingjthe cy1-' -2.- The cb binatidn a circular j knitting machine of a base plate, a cylinder-supporting ring removably'secured to the base plate,- -a'Lcylinder secured to said supporting-ring an{adjust-- ing ring threaded into said supporting "ring and engaging said cylinder-for *shifting the cylinder knittin machine of a base plate, a cylinder-supporting? axially with respect to said supporting ring, a flange on said adjusting ring provided with a peripheral cylindrical wall concentric to the axis of the adjusting ring and having a snug fitting bearing fin aicounterbore formed in said cylinder supporting said. adjusting; ring'fhaving a cylinder supporting surface perpendicular to the axis of said adjusting ring, and screws passing 7 w 7 I through said supporting ring and tapped into other and with the cooperating parts *oi the machine which revolve about the axis-of the cylinder 11 and which would cause binding ot such parts against the cylinder'11,causingexv 'cessive wear therebetween. The flange 15 by, having a snug fitting bearing said cylinjdjer externally of and spaced circum- Ierentially about said adjusting ring for securing said rings andsaid;cylinder together as a unit.

1' "3. The combination of a circular knitting machine-oft a:basep1ate, a cylinder-supporting member rem ovably secured to the base plate, a T cylinderiimember secured to said supporting member; a rotary adjusting element intermediate and axially "aligned with said cylinder and supporting members and having spiral threaded engagement with atleast one of said members for shifting the cylinder membera'XialIy with respect to the supporting member; means formed on one of saidmembers and extending parallel to the axis of andinf'circumambient relation to. the other 'of 5am 'rnembers to I prevent lateral movement between said members during relative axial shifting ftherebetween, a flange on said rotary adjusting element having a cylindrical peripheral wall concentric to the'axis of said element and; having a snug fitting bearing in a circular concentric counterbo're formed in the member with which said element "has-said threaded engagement, said adjusting element having a bearing surface perpendicular to the axis thereof forengageinent with the other of said members and means'tor, clamping said members and said intermediate element in substantially fixed relation to each other: a 

